| 摘要 |
PROBLEM TO BE SOLVED: To allow two SIP servers (111 and 121) that are located on the same board (101) to communicate with each other using an internal mechanism, a SIPia bus (131), without sending message over an external network. SOLUTION: Each of the SIP servers (111 and 121) registers with a pre-DNS resolver (153). An originating SIP server (111) formulates a message that contains the name of a destination SIP server (121). The message is transmitted to the SIPia BUS (131) located on the board (101), which makes query to the pre-DNS resolver (153) to resolve the destination SIP server name (121). If the destination SIP server (121) is located on the same board (101) as that of the sending SIP server (111), the pre-DNS resolver (131) returns local destination information to the SIPia BUS (131). The SIPia BUS (131) transmits the message to the destination SIP server (121), in place of sending the message outside of the board (101). COPYRIGHT: (C)2006,JPO&NCIPI
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